Heavy metal content in the forest-steppe zone of the Southern Urals Sergey Smolentsev, Alexander Volkov, Kirill Danilov, Natalya Shvetsova, Anastasia Korotkova, Irina Matveeva, Svetlana Gryn, Yuri Fedorov and Roman Melnik BIO Web Conf., 173 (2025) 03005 Published online: 23 April 2025 DOI: 10.1051/bioconf/202517303005